Spinning-mule.



J. J. MUGLYINGY.

sHNNiNG MULB. APPLICATION FILED 00T.14, 1907.

Patented Oct. 27, 1908.

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J. J. MQGLINCY.

SPINNING MULE. APPLIOATION FILED 00T.14\, 1907.

Patented Oct. 27, 1908.

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'UNITED STATES PATENT entren.

JOHN I. MCGLINCY, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO DAVIS da FURBER MACHINE COMPANY, OF NORTH ANDOVER, MASSACHUSETTS. A CORPORATION OF MASSACHUSETTS.

SPINIHNG-MULE Specification of Letters Patent.

Patented Oct. 27, 1908.

To all whom it may concern.'

Be it known that l, .loi-1N J. MCGLINGY, a citizen of the United States, and a resident of l"Voicester, in the county of l/lyorcester and State of Massachusetts, have invented an Improvement in Spinning-Mules, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention relates to spinning mules and more particularly to the quadrant mechanism, such mechanism comprising a quadrant provided with a screw turned by socalled feed-motion including an endless band or rope actuated by or through the carriage a quadrant-nut cooperating with the screw and having a sheave over which. passes the winding chain connected with the spindledriving drum, and means to oscillate the quadrant with a constant throw throughout the winding of a set of cops. The quadrantscrew is rotated from time to time during the formation of the cop bottoms, the nut starting at its lowest position at the beginning of the winding, the automatic rotation of the screw being effected by the feed motion, which is governed by the tension and winding fallers, the upward movement of the nut ceasing when the cop bottoms are formed.

At the completion of the winding of a set of cops the quadrant-screw must be turned backward by the operative in order to wind the quadrant nut down to its starting position, and ordinarily this involves the eX- penditure of considerable strength in order to overcome the friction and inertia of the feed motion connected with the quadrant screw.

My present invention has for its object the production of means whereby the feed motion is automatically brought into operative engagement with the mechanism which effects travel of the quadrant nut on the screw, whenever movement of the nut is required,

at any point on the inward run of the carriage, and automatically disconnected from such mechanism by or through the manual winding down ofthe quadrant nut. That is, the feed motion is connected automatically with the mechanism for effecting the requisite travel of the quadrant nut when such travel is necessary, so that when the winding down of the nut is effected by the operative there .f behind them, in dotted lines.

is very slight eXertion required, as the feed motion is disconnected by the initial reversal of rotation of the quadrant screw. Tnasmuch as the feed motion is thrown in automatically when required there is no chance of breaking down the ends by failure of the operative to render the feed motion operative after winding down.

The various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a side elevation of a sufficient portion of the quadrant mechanism of a spinning mule to be understood, with one embodiment of my invention applied thereto, the feed motion being thrown out; Fig. 2 is a right hand end elevation thereof and partial section, the section being taken on the line 2-2, Fig. l FiO. 3 is an enlarged side elevation of the sheave around which the feed rope of the feed motion passes, and showing the means for connecting the feed motion with the mechanism for effecting travel of the quadrant nut; Fig. 4 is a left hand end elevation of the sheave and connecting means g Fig. 5 is a view similar to Fig. 3, but showing the connecting means in operation; Fig. 6 is a sectional detail on the line 6-6, Fig. 4, to be referred to; Fig. 7 is a view on a smaller scale of the feed motion and a part of the carriage, the feed rope being broken out to save space.

Referring to Fi 1, the stand or post DX, the quadrant D fu crumed thereon and oscillated in usual manner; the quadrant screw D@ its nut D2 provided with a sheave D3 over which passes the winding chain D10, the bevel gear d fast on the screw and meshing with a bevel gear d/ fast on a shaft d2 coaxial with the quadrant and extended through the fulcrum of the quadrant D supported in the stand DX, Fig. 2, the pinion d3 fast on said shaft and engaging an intermediate gear d4, best shown in Fig. 2, may be and are all of well known construction in spinning mules.

Tn Fig. 1 the pinion d3 and intermediate gear d4t are only partly represented in full lines, 'in order to show more clearly the parts The gear di is l in mesh with a smaller gear or pinion d'5 rotal tably mounted on the reduced portion of a l stud d6, see dotted lines Fig. 4,flXedly mounted in and extended from the stand DX, the pinion Z5 lhaving secured to or forming part of it a ratchet 1, constituting one member of a coupling or connection between the feed motion, as will be described, and the train of gearing cZ, (Z4, etc., which rotates the quadrant-screw.

Upon the stud ZG I rotatably mount a grooved wheel or sheave Z7, and outside it the inner end of a headed sleeve 2 abuts against the hub cZ7X of the sheave, Fig. 4, the sleeve being held fast on the stud by a set-screw 4 passing through the annularly enlarged head 3 at the outer end of the sleeve.

Between the head of the sleeve 3 and the hub Z7 a friction clamp is mounted, comprising two like members 5 cored out to embrace the sleeve 2, see Fig. 6, and held together by screws 6, one at each end of the clamp, each member of the latter having a hollow boss 7 in which is mounted a spring 8, the free inner ends of the springs bearing against friction pads 9 interposed between the sleeve and the cored out portions of the clamp. The clamp is thus frictionally held upon the sleeve but can turn upon it when the friction is overcome, the construction of the clamp shown being simple and effective.

At one end the clamp members are oppositely recessed to form an oblong hole or slot 10 eccentric to the stud d, Fig. 6, in which is loosely mounted one arm 7 of a crank 11 constituting a pawl-carrier, the other arm passing freely through a hole in the sheave Z7 and having attached fixedly to it, at the rear of the sheave, a pawl 12. Said pawl constitutes the second member of the coupling or connection hereinbefore referred to, and is adapted to at times engage the teeth of the other member, viz the ratchet 1.

The relative positions of the several parts mounted on the stud ZG are shown very clearly in Fig. 4, and it will be remembered that the sheave is freely rotatable on the stud, so that if the sheave, positioned as shown in Fig. 3, be turned in the direction of arrow 50 it will turn the crank-like pawl-carrier 11 in its seat 10 as a fulcrum, the clamp 5, 5 remaining stationary. Such movement of the pawl-carrier will act to move the pawl 12 into engagement with the ratchet 1, as shown in Fig. 5, and thereafter further movement of the sheave Z7 in the direction of arrow 50 will rotate the ratchet and the pinion d5, to act through the intermediate train of gearing and effect rotation of the quadrantscrew D and consequent movement of the nut D2.

It will be understood that when the coupling is in operative condition, as in Fig. 5, the rot-ation of the sheave (Z7 acts through the pawl-carrier 11 to turn the clamp 5, 5 upon the sleeve 2.

From a comparison of Figs. 3 and 5 it will be seen that a very slight angular movement of the sheave Z7 will throw the pawl 12 into or` out of engagement with the ratchet 1, and no rotation of the latter will be effected unless the rotation of the sheave in the direction of arrow 50 is continued after the pawl is thrown into operation. When the sheave is turned oppositely to the arrow 50 to disconnect the coupling a pin 13 on the sheave engages the pawl and limits its outward movement, so that the change in the relative position of the sheave and the clamp is only from the position shown in Fig. 3 to that shown in Fig. 5, and vice versa.

/Vhen the pawl is thrown out and the coupling disconnected or rendered inoperative, as in Fig. 3, it will be manifest that the quadrant screw can be readily turned by hand, to wind downthe nut, as only the train of gearing terminating with the pinion Z5 will be actuated thereby, so that very little exertion is required on the part of the operative.

Referring to Fig. 5, where the pawl and ratchet are in engagement, it will be seen that a reverse rotation ofthe quadrant screw will act at once through the intervening connections to effect slight rotation of the ratchet 1 and the pawl 12 opposite to the arrow 50, so that the sheave Z7 will be given thereby a slight retrograde rotation in unison with the ratchet. This, however, is sufiicient to throw the pawl out of engagement with the ratchet, for the pawl-carrier is thereby swung in the seat 10 as a fulcrum, as indicated in Fig. 3, throwing the toe of the pawl outward and the winding down is continued with the feed mechanism disconnected.

I will now describe the manner in which the coupling is automatically thrown into operative condition, and a brief description of the feed motion is necessary. Referring to Fig. 7, a casting (Zw secured to the floor is provided with a stud on which is mounted a grooved wheel du, and a casting Z13 on the carriage A of the mule sustains a grooved wheel Z14 and a stud 15. The feed rope (Z8 passes around the sheave (Z7 and the wheel d1 and partially around the wheel ZL-1, and about a grooved wheel Z1G on the stud 115, all substantially as in United States Patent No. 866,307 granted to Rundlett the seventeenth day of September, 1907, the stud Z15 sustaining a loose ratchet Z17, as in said patent and normally the wheels Z14 and d1 turn freely on their axes, as the carriage reciprocates, the feed rope having no longitudinal movement. The leg 0/ is arranged to at times engage the ratchet Z 17 and stop its rotation, to thereby through the resistance due to non-rotation of the wheel d1, cause the feed rope Z8 to be moved longitudinally in the direction of arrow 60, Figs. 3 and 5, and effect rotation of the sheave Z7 to rotate the quadrant-screw. Such actuation of the quadrant-screw is effected just before the carriage completes its inward run toward the feed rolls, just before the tension faller descends and before the winding faller is raised to lock the tension faller in the position it should occupy during the next outward run of the carriage.

The leg a is not intended to engage the ratchet d when the position of the fallers is being changed at the rolls, but if in the winding operation the yarn should be too tight the leg may drop into engagement with the ratchet at any point in the inward run of the carriage, causing the feed rope d8 to act upon and rotate the sheave Z7 and turn the quadrant-screw, moving the nut D a greater' or less distance, as required, to relieve the tension of the yarn. Vihen the sheave Z7 is rotated by movement of the feed rope it first throws the pawl 12 into engagement with the ratchet 1, thereby automatically coupling the feed motion with the transmitting gearing for the quadrant-screw, and then operates through such gearing to rotate the screw as may be necessary, the amount depending upon the time the leg a remains in engagement with the ratchet du. As soon as the leg is withdrawn movement of the feed rope ceases, and the sheave d? remains quiescent.

After the described action has been effected it is practi 'l y immaterial whether or not the pawl l2 and ratchet 1 remain in ei'igagcment during the continued operation of the mule, for if on a subsequent inward run of the carriage the tension of the yarn requires additional movement of the quadrant nut it will be effected when the leg a is again placed in engagement with the ratchet 17. Should the outward movement of the carriage act through the feed rope to turn the sheave d? back oppositely to the arrow 50, Fig. 5, far enough to disengage the said pawl 1 and its ratchet, which operation may at times accidentally occur, there is no objection thereto, for the coupling of the feed motion and the mechanism for actuating the quadrant screw will be effected automatically when necessary. lt will thus be obvious that the quadrant-screw is operatively connected automatically with the feed motion at any point on the inward run of the carriage to effect the requisite outward movement of the quadrant nut, whether that movement be greater or less, and the uncoupling of the screw from the feed motion is positively and automatically effected by the initial reverse motion of the screw by or through the manual operation of winding down, the screw being thus left free to be easily turned by the operative as winding down proceeds and is completed.

My invention is not restricted to the preoise construction and arrangement herein shown and described, as the same may be modified various particulars without departing from the spirit and scope of my invention, as set forth in the appended claims.

l Having described my invention, what l claim as new and desire to secure by Letters l Patent is l 1. In a mule, in combination, a reciprocating carriage, a quadrant, its screw, gearing l connected with and to effect rotation of the l screw, a feed motion, including a rotatable l member, and means controlled by the te sion of the yarn to rotate said member at any point on the inward run of the carriage and thereby connect the rotatable memberand said gearing to effect rotation of the quadrant screw, manual reverse rotation of the latter effecting automatically disengagement of said rotatable member and the gearing.

2. ln a mule, in combination, a reciprocating carriage, a quadrant nut, mechanism to effect movement thereof relatively to the quadrant, a feed motion, and means to autoeration of said mechanism at any point on. the inward run of the carriage, manual wind.- ing down of thc quadrant nut effecting automatically disengagement of the said mechanism and the feed motion.

3. fn a mule, in combination, a reciprocating carriage, a quadrant, its screw, a feed motion, including a rotatable sheave, gearing intermediate said sheave and the screw, to effect rotation of the latter by the sheave, a coupling between the sheave and sfearing, and means controlled by the tension of the yarn to automatically throw the coupling into operative condition at any point on the inward run of the carriage.

e. ln a mule, in combination, a reciprocating carriage, a quadrant, its screw, a feed motion, including a rotatable sheave, a ratchet rotatable independently of the sheave, gearing operatively connecting the ratchet and screw, a pawl movable with and also relatively to the sheave and adapted to cooperate with the ratchet, and means controlled by the tension of the yarn to cause angular movement of the sheave at any point on the inward run of the carriage, to first throw the pawl into engagement with the ratchet and thereby couple the feed motion and the quadrant screw and then to continue such angular movement of the sheave to effect rotation of the screw.

5. The combination, in a mule, of a reciprocating carriage, a quadrant-screw and its nut, a feed motion, a transmitting connection between it and the screw, and means controlled by the tension of the yarn to automatically couple said connection and the feed motion at any point on the inward run of the carriage and thereby eect requisite rotation of the screw.

6. 1n a mule, the combination with a reciprocating carriage, a quadrant screw, and the nut thereon, of a ratchet operatively connected with said screw, a pawl for turning .the ratchet, said pawl and ratchet being niatically connect it with and effect the op-l mounted independently of the carriage, and means controlled by the tension of the yarn to cause the pawl to engage and turn the ratchet, and thereby the quadrant-screw at any point on the inward run of the carriage.

7. ln a mule, the combination with a reciprocating carriage, a quadrant screw, and the nut thereon, of a ratchet operatively con nected With said screw, a pawl for turning the ratchet, and means controlled by the tension of the yarn to cause the awl to en-v gage and turn the ratchet, and t ereby the quadrant-screw, at any 'point on the inward run of the carriage, manually eflected reverse rotation of the screw to wind down the nut effecting automatically disengagement of the pawl and ratchet.

8, In a mule, a quadrant-screw, a feed motion, including a sheave and a fixed stud on which it is rotatably mounted, a ratchet loose on the stud, gearing connecting said ratchet and the screw, a pawl, a pawl-carrier fixed thereto and connected with the sheave, and a support frictionally held on the stud and on which the pawlcarrier is fulcruined, limited angular movement of the sheave roclring the pawl-carrier on its support to throw the pawl into or out of engagement with the ratchet, continued movement of the sheave after suoli engagement rotating the ratchet with it to turn the quadrant-screw.

9. ln a mule, a quadrant-screw, gearing operatively connected with it, said gearing including a rotatable coupling member, a feed motion, including a rotatable sheave, a

second coupling member movable bodily with the sheave and also movable relatively thereto, a friction clamp with which the second coupling member is connected, said clamp being mounted coaxially with the i sheave, initial rotation of the sheave in one direction effecting operative engagement of the coupling members to actuate the gearing and thereby rotate the quadrant screw, movement of the sheave in the opposite direction when the coupling members are engaged effecting their disengagement.

l0. In a mule, in combination, a quadrant and its screw, mechanism, including a ratchet, to rotate the screw, a feed motion, including a sheave, a fixed stud on which it is rotatably mounted, a friction clamp on the stud, a cranlr fulcrumed on the clamp and having one arm extended through the sheave, a pawl fixed on said arm, movement of the sheave relative to the clamp acting initially to rock the crank an d throw the pawl into or out of engagement with the ratchet, and a stop on the sheave to limit disengaging movement of the pawl, continued rotation of the sheave when the pawl and ratchet are in engagement effecting rotation of the screw, the clamp then turning with the sheave.

In testimony whereof, l have signed. my name to this specification, in the presence of two subscribing witnesses JOHN J. MCGLINCY. itnesses:

JOHN B. RATIGAN, c FRANCIS P. MoKEoN, Jr. 

